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HelpTest Code LAB294 Hemogram
Performing Lab
Arnot Ogden Medical Center/ Ira Davenport Memorial Hospital
Ordering Recommendations
A screening tool to confirm a hematologic disorder, to establish or rule out a diagnosis, to detect an unsuspected hematologic disorder, or to monitor effects of radiation or chemotherapy.
These counts are used as clinical guides in the diagnosis or monitoring of many diseases.
Included in CBC.
Includes WBC, RBC, RBC Indices, & Platelet Count.
*For CBC with Manual Differential, order LAB1748
Collect
Whole Blood
Collection Device
EDTA Lavender Top Tube
Rejection Criteria
- Specimen is clotted
- Quantity Not Sufficient for Analysis (QNS) – The minimum sample volume is 2mL in an EDTA vacutainer tube or 250 µL for a capillary puncture.
Specimen Volume
3 mL
Stability (from collection to initiation)
| Room Temp | 24 Hours |
| Refrigerated | 48 Hours |
Storage/Transport Temperature
Refrigerated
Minimum Requirements
2 mL
250 uL capillary puncture
Remarks
TURN AROUND TIME
| STAT | 1 Hour |
| Routine | 8 Hours |
Methodology
Flow cytometry, Hydrodynamic Focusing, SLS hemoglobuin detection
Start Date
9/13/2017
Last Review Date
06/24/2025
7/3/25 AP
7/31/2025 JLH